Step * 4 1 of Lemma projective-points-exist

.....assertion..... 
1. EuclideanParPlane
2. Unit
3. y1 Unit
⊢ Line
BY
(InstLemma `geo-sep-O-X` [⌜e⌝]⋅ THENA Auto) }

1
1. EuclideanParPlane
2. Unit
3. y1 Unit
4. O ≠ X
⊢ Line


Latex:


Latex:
.....assertion..... 
1.  e  :  EuclideanParPlane
2.  y  :  Unit
3.  y1  :  Unit
\mvdash{}  Line


By


Latex:
(InstLemma  `geo-sep-O-X`  [\mkleeneopen{}e\mkleeneclose{}]\mcdot{}  THENA  Auto)




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